Four Paws Vita-Greens are designed to satisfy cat's and kitten's natural cravings for grass. It also acts as a natural hairball remedy, aids in digestion, and keeps cats away from houseplants and forbidden garden plants. Vita Greens are completely organic, and our high quality growth medium ensures germination. Our formula utilizes potting soil for faster and fuller growth. The bowl can be used as a food or a water dish as well.